Translation guide
The act of noticing or discovering something, especially something hidden or not obvious. Japanese expressions vary based on what is being detected and the context.
Expressing the act of detecting or discovering something in a broad sense.
Commonly used for technical or scientific detection, such as detecting substances, signals, or errors.
A virus was detected.
a system that detects anomalies
Means 'discovery' or 'finding'. Used when something is found, often after searching. Less technical than 検出.
They detected a new star.
Early detection of problems is important.
Implies sensing or perceiving something, often intuitively or through subtle signs. Used for detecting danger, presence, or changes.
He detected danger and fled.
He immediately detected something wrong.
Used for detection by sensors or physical senses. Often technical, like a sensor detecting motion.
The sensor detected movement.
When detection involves simply noticing something with your senses.
The most natural way to say 'notice' or 'detect' in everyday situations. Implies becoming aware of something.
I didn't detect his lie.
Please let me know if you detect anything unusual.
Means 'to detect with a sharp eye' or 'to spot quickly'. Used when someone is observant.
She quickly detected the mistake.
Referring to the detection of crimes, criminals, or illegal activities.
Detecting diseases, symptoms, or health conditions.
Literally 'early detection', a standard term in medical contexts for catching diseases early.
Early detection of cancer is important.
Intransitive verb meaning 'to be found/detected'. Often used when a condition is discovered during an examination.
検出 is technical and often used for machines or scientific processes. 発見 is broader and can be used for discoveries in general. 察知 implies a more intuitive or sensory detection, often of non-physical things like danger or mood.
a device that detects gas leaks
They detected a new species.
I detected his anxiety.
English 'detect' is often translated as 検出する, but this can sound overly technical in casual contexts. Use 気づく or 見つける for everyday noticing.
The system detected an error.
I detected a note of sarcasm in his voice.
感じ取る (to sense) is more natural here than 検出.
Early detection saves lives.
Early detection of crime is key to the investigation.
検査で異常が見つかった。
An abnormality was detected in the test.